14 April 1999 Efficiency improvement in light-emitting diodes based on geometrically deformed chips
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Abstract
We propose LEDs based on geometrically deformed chips of which the horizontal cross-section is either rhomboidal or triangular and, in addition, side walls may also be slanted. In such deformed chips, the photon trajectory changes with each reflection off the wall and, as a result, the continued total internal reflections as observed in conventional rectangular cubic chips are suppressed.
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Song Jae Lee, Song Jae Lee, Seok Won Song, Seok Won Song, } "Efficiency improvement in light-emitting diodes based on geometrically deformed chips", Proc. SPIE 3621, Light-Emitting Diodes: Research, Manufacturing, and Applications III, (14 April 1999); doi: 10.1117/12.344484; https://doi.org/10.1117/12.344484
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